I think accepting the 17K is reasonable. Dragging it out will mean more lawyers' costs with no guarantee of a higher settlement.
Also if you take the money, this is DONE which will be a load off your shoulders.
It's crystal clear that he deceived you and the judge, and for that reason alone I would cut off all contact with him.
I think it would be prudent to still look for a roommate, but at least you are less pressured.